Journal ArticleDOI
A meanlife measurement of the 3d2D resonance doublet in SiII by a technique which exactly accounts for cascading
TLDR
The mean life of the 3d 2 D doublet in SiII has been determined to be 047 ± 003 ns by a technique which utilizes arbitrarily normalized decay curves of all direct cascades in the analysis of the decay curve of the measured level, and thus exactly accounts for cascade effects as mentioned in this paper.About:
This article is published in Physics Letters A.The article was published on 1971-02-22. It has received 155 citations till now. The article focuses on the topics: Resonance.read more
Citations
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Atomic Data for Resonance Absorption Lines. III. Wavelengths Longward of the Lyman Limit for the Elements Hydrogen to Gallium
TL;DR: In this paper, a list of atomic data for the lighter elements from hydrogen to gallium is presented, with a focus on resonance lines, i.e., lines whose lower level is the ground state, or an excited fine-structure state of the ground term, and restricted to wavelengths longward of the H I Lyman limit at 911.753?.
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Atomic Data for Resonance Absorption Lines. II. Wavelengths Longward of the Lyman Limit for Heavy Elements
TL;DR: In this article, a compilation of atomic data by Morton to the heavier stable elements from germanium to bismuth is presented, including thorium, thorium and uranium, which can live long enough to be astrophysically detectable.
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Beam-foil spectroscopy
TL;DR: The measurement techniques of beam-foil spectroscopy are reviewed in this paper, which includes the study of wavelengths of heavy ions with low and high charge states at visible, UV and X-ray wavelengths from normal excited states, multiply excited states and high-n Rydberg levels.
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The spectroscopy of highly ionised atoms
TL;DR: In this article, the results of spectroscopic studies of quantum electrodynamics, QED, are compared with theoretical predictions with respect to energy level studies along isoelectronic sequences, inner-shell excited levels, forbidden transitions, lifetimes and transition probabilities.
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Lifetime Measurements in Si II, Si III, and Si IV
TL;DR: In this article, the beam-foil technique was used to measure radiative decay times in Si II, Si III, and Si IV in the wavelength region 700-6 000?.
References
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Journal ArticleDOI
Some Mean Life Measurements in the Na I and Mg I Isoelectronic Sequences
TL;DR: In this article, the beamfoil technique has been used to observe the spectra of Na, Mg, and Al between 1 000 and 6 000? and the Decay times of transitions in Na I,Mg I, II, II and Al II, III were measured.
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On the Interpretation of the Line Spectra of Quasi-Stellar Objects
TL;DR: In this paper, electron scattering interpretation of ionization, emission, and absorption line spectra of a quasi-star is presented, along with a detailed description of its spectral properties.
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New cascade analysis techniques for determining spontaneous atomic transition probabilities
TL;DR: In this article, the effects of cascades in the measurement of atomic transition probabilities have been investigated by the use of computer simulated data containing various numbers of known exponentials and a diagrammatic mnemonic which trivially generates the theoretical decay curves for cascade schemes of arbitrary complexity is described.
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A new experimental technique for measuring atomic transition probabilities
TL;DR: In this article, an experimental method for measuring absolute transition probabilities applicable in the uv is described and the effect of cascades into a given level can be evaluated experimentally without making any assumptions concerning decay schemes or initial populations of higher levels.